50 sec + exposures at ISO 3200 in cold weather with D7000 - hows the noise?

Started Sep 7, 2012 | Discussions thread
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tsk1979 OP
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Re: Why ISO3200?
In reply to Scott Beattie, Oct 23, 2012

Scott Beattie wrote:

Is this used simply to shorten the exposure time?

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Nikon D90, Sigma 18-50 2.8, Nikon 70-300VR

Yes. If you take too long an exposure, you will get star trails. So you have to have exposure time shorter than 600/(35mm equiv focal length)

With a 16mm(eq 24mm) I can go max 25 sec without trailing

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 tsk1979's gear list:tsk1979's gear list
Nikon D7000 Sony Alpha 7 Nikon AF Nikkor 50mm f/1.8D Nikon AF-S Nikkor 70-300mm f/4.5-5.6G VR Tokina AT-X Pro 11-16mm f/2.8 DX +5 more
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